Abstract
The phenomenon of shape coexistence, occurring frequently in the vicinity of nuclear subshell closures, is investigated within a schematic model with protons in two subshells and neutrons in a single shell. The results of this study shed some light on how one should model the phenomenon within the interacting-boson framework and relates to previous phenomenological studies. Our model employs an SO(8)SO(8)+SO(8)- dynamic symmetry to ensure exact decoupling of an S-D-pair space, thus providing a tight conceptual link with the interacting-boson model. The model has a critical point, namely, below a certain number of valence neutrons the deformed configuration ceases to coexist. This is intriguingly reminiscent of the data.
Original language | English (US) |
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Pages (from-to) | 981-987 |
Number of pages | 7 |
Journal | Physical Review C |
Volume | 42 |
Issue number | 3 |
DOIs | |
State | Published - 1990 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics